wic: remove extra double-quote on documentation string

(From OE-Core rev: e34fd016ed6634b1375b78f3dfe60afcc58e5bab)

Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/wic/ksparser.py

@@ -114,7 +114,7 @@ def systemidtype(arg):
     return arg
 
 class KickStart():
-    """"Kickstart parser implementation."""
+    """Kickstart parser implementation."""
 
     DEFAULT_EXTRA_SPACE = 10*1024
     DEFAULT_OVERHEAD_FACTOR = 1.3